Biblio

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1910
unknown,. Anon.1910. Address at High School on Halleys Comet. Tucson Citizen. Tucson Citizen.
Douglass, AE. Anon.1910. Drawings of a Comet. Popular Astronomy. Popular Astronomy.
Douglass, AE_Drawings of a Comet_1910.pdf (1.86 MB)
Douglass, AE. Anon.1910. El Cometa de Halley. Tucson Citizen. Tucson Citizen.
Douglass, AE. Anon.1910. Halleys Comet. Tucson Citizen. Tucson Citizen.